Perforating and scoring attachment for printing presses



Nav, 10 1925. 1,560,622

M. TEPPER PERFORATING AAND SQORIHG ATTACHIIENT FOR' PRINTING PRESSES KPiledfbeo. 11. 1924 ano: suus.

Patented Nov. 10, 1925.

UNITED STATES dPA'IIYIEZNTv ,OVFKF'ICE'I Moms TENER, or GHloAco,iLLINoIs.

PERFORATING AND SCORING ATTACHMENT FOR PRINTING Application nleaDewinter` 11, 1924. serial No. 755,271.:y

provements in Perforat-ing and Scoring Attachments for Printing Presses,of which the following is a specification.

This invention relates to platen printing presses, and more particularlyto scoring and perforating appliances therefor, and its object is toprovide a novel attachment for this purpose which will be simple inconstruction and etcient in operation.

In printing presses of the pla-ten type, the platen approaches andrecedes from the type form, the inking rollers passing over the latterin a vertical direction while the platen is spaced from the same.Scoring or perforating strips are at times incorporated in the form toserve simultaneously with the printing action, vertical strips of thisnature being more frequently employed, such as for the scoring ofvbookco-vers, folders and the like or the perforating of receipt books, orderblanks, etc. While form-retainedscoring and perforating strips areefficient for the immediate effect of these operations, they have beenfound more or less unsatisfactory because of damage incident to theiroperation. Thus, due to the passage ofthe inking rollers over the form,a coating of ink is given`the scoring or perforating stri s as well,whereby they print, asfthe press c oses, where but scoring orperforating4 is desired; f..

and, due to the prominence of the scoring or perforating strips on theface of the form, the i'nking rollers-made of a yieldwill be outside thepathl of the inking rollers, thus keeping the strips free of ink and therollers clear of damaging contact.

A further object of my invention is to apply the novel scoring andperforating element as an attachment to the standard gripper carriage,so that the press will require no alterations or additions to adapt itto the new equipment.

A still further object of the invention is .to make it variously.adjustable ,t0 Suit lthev periods without replacement. v v

With the above objects in view, and any others which may suggestthemselves from -the description and claimsy to -`follow,'atten,

tion is directed to the accompanying Ydraw- "conditions of the work andserve for long f soV ing forming apart of this specication, 1n Y whichY,

Y Figure 1 is a face view-,partly broken away-of a press platen, showingthe novel appliance in position ;l

Fig. 2 is an edge View; and

Fig. k3 is a detail section on the line 3%3 J l ofFigl. Y v

Referring specifically to the drawing, 5 denotes the platen and 6lthegripper carriage 'of a standard printing press', said carriage beinghingedly disposed as shown atf7, and having the usual Vhorizontal. slots-8.- The form, inking rollers, or other surrounding plication to thepress. Y 1 v.

The novel appliance comprises mainly a .parts of the press have notbeenshown;

pair of laterally spaced-steel bars 9 which are i `laid on the face ofthe platen in the `manner shown. Each bar is rectangular in crosssectionand is outwardly enlarged at the lower end to form a base plate 10positioned upon the gripper carriage 6.- :Thebase plate 10 has a palr oflaterally spacedU openings registering substantially with" the grippercarriage slots r8, the inner` opening 11 being round, `and the outer 12vertically elongated.; A bolt 13 passes through each opening and throughthe gripper; carriage 'to .receive` a nut 14 on the other vside of thesame, wherebythe bars are secured to the gripper carriage. The extendedopening 12 is intended to permit variations in the adjustment of the barbefore the bolt is tightened. The two bars 9 are thus capable of beingladjusted both as to spacing and parallelism. In order that the bars 9may be rigidly maintained in properly spaced relation at their upperends, atransverse screw 15 is` loosely 'passed through them thereat,with locking nuts 16 on either side of each bar.,` With the nutsloosened, the bars may be' spaced a predetermined distance, and theadjustment fixed by re-tightening the nuts. The screw 15 may be suppliedshort as shown, or of a length covering the width of the platen, tosut,any spacing adjustment,

Toftheside'faeesof each. bar:9.; are secured by screws `17 vtwosteel'strips 1S4 and 1,9.

These project slightly from the visiblefaces l of the strips-asindicated. inUFig'. Sf-tlie strips 18 being'finished vvitlr'a blunt edge18a, andf-tlie'strips 19- Witli saw-toothed f edge 19a.

In operation, the advancey. oilthe platen upon the forni will carry theappliance along Vfso, as to impress the. signaturey withY crease linesby the scoringfstrips lf and perforation; lines bythe perorating strips19, the ornnbeing` ofcourse builtiup; With Wooden furniturestrips toprovide a suitablerreceivingworbacking` elenientaor the signa-vtureisoimpressed.l The bars Q'rnay be used with either the scoring strips orperiierating suil'icient'rigidity to. impressthework accu- `rately anduniformly. y

It vvill be `iseenrthat .the above` appliance provides a simple:expedient tov accomplish 1 the objeets'conteniplated. The scoring and'bars, and adjustable devices carried by they perfor-ating elements yarelrepticlear of the inliing rollers so `as not to-rec'eive any. inl;

therefrom or aiileotthelnfin any manner. Snchelenients areeasilyyremovable and E'1nvterchange'able andsalso renewablein. caseoflwear, enabling theappliance to be used -v -vand vmaintained. for -ar:long: periodi at tr'ifiing 'l Gripper` carriagel design ybeingstandard,theudevicefisl applicable tofany v 1 adjustabledevices..carried bytliefbarsA near their uppei` :endsfto'seeureftlieni in suitably`expense.

platen: ress Without occasioning any change 1n oraedltionito tliesame-=Ifclaimz- 1.,v A11 scoring andiperforatingi4 appliance e for platen`presses coni'prising: a v@bar @carried z byzthje gripper' carriagafandIa'se'oringf or per-fo1ating1l blade s-attaehable tof either f side 2;?A' scoring and perforatifngiV appliance for iplaten pressescomprising abar vcarried Y b .the Orioeer:earriae'exand@al scorino' or z? il n 7, 1a perfn-atin'g` blade removably attacnable to `either .side of such bar.

1l. ,A scoring and perforating, appliance orzplaten :presses comprisingla bar applied to the face 'oit the platen, scoring and perorating bladescarried bythe bar, albasal enlargement 'of `said barqapplied to the faceot the gripper carriage, and adjustable'bolts `andnznuts carriedr by`said enla'rgelnentl and co-operatingi With the slots in the. gripperrarriage whereby to securerv thep-anglea-and lateral position: of thebar. o o

5, A; scoring and perforating appliance for. platen presses ,comprisinglaterally spaced bars applied to the face of the platen, scoring .andperiorating :blades carried 'by the'bars, supports 'orthe lower ends ofthe bars near their upper ends toy secnrethein in suitably-.spacedrelation; Y i

6.V A scoring and perforatingV f appliance for platen pressescomprising. laterally spacedrbars applied tothe lace ofthe platen,scoring;- and'3perforating-A blades carried by the zbars;k a Vbasalenlargement of eaolr bar appliediftotheeacefof tliegripper carriage,

spacedI ilrelation', andi; other vadjustable-f devices carriedbytheenlargement of each'bar whereby toi-securethe angleandl'lateralpositiionfoffsuehbar; f f Y, Inetestiinony whereo'flali-Xnay-signature;.-

